Chuckanut
Member
- 36
- 13
- 8
- Location
- Sunnyvale, California
Hey guys I put a vdo 4K tach in my truck about half a year ago and all the sudden it stopped working you can see it’s getting power because the needle rises up to zero but when the truck is running it doesn’t read anything and I didn’t mess with the switches on the back to calibrate it I didn’t mess with anything it just stopped working. I tested the tach pulse with a multimeter and everything is fine there. The tachometer is getting power it has ground and it’s getting a tack poles but it’s not reading anything has anybody else have this problem? Also is it normal for a cucv after the truck is running for about five minutes is it normal to see 15 Volts? Cause that just seems to be a regular output in the dashboard